2686872 has 16 divisors (see below), whose sum is σ = 6717240. Its totient is φ = 895616.

The previous prime is 2686861. The next prime is 2686889. The reversal of 2686872 is 2786862.

It is a super-2 number, since 2×2686872² = 14438562288768, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2686872.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55953 + ... + 56000.

2^2686872 is an apocalyptic number.

It is an amenable number.

2686872 is an abundant number, since it is smaller than the sum of its proper divisors (4030368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2686872 is a wasteful number, since it uses less digits than its factorization.

2686872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111962 (or 111958 counting only the distinct ones).

The product of its digits is 64512, while the sum is 39.

The square root of 2686872 is about 1639.1680816805. The cubic root of 2686872 is about 139.0216138775.

It can be divided in two parts, 268 and 6872, that added together give a triangular number (7140 = T₁₁₉).

The spelling of 2686872 in words is "two million, six hundred eighty-six thousand, eight hundred seventy-two".